This is the opposite of what you want for laser microphone which usually targets a reflective surface like ... as well as audio sequences despite the sensor itself being less than ideal, and ...

Voyant Photonics develops an FMCW LiDAR sensor with highly accurate detection and tracking of moving objects up to 200 meters ...

Laser Surface Velocimeters (LSV) from Polytec are optical length and speed sensors that exceed the performance of conventional contact-based measurement techniques such as encoder wheels and provide ...